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LT4 "non HOT" cam in a 330ho motor

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Old Jun 17, 2002 | 08:01 PM
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jagone's Avatar
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From: Mcdonough, GA
LT4 "non HOT" cam in a 330ho motor

What do you think the power drop would be compared to the cam it comes with? I think I will also be using 1.6 rockers. I want a roller setup and with an LT4 I wouldn't have to worry about an external EGR setup for emissions, since the LT4 has enough overlap to act as a self EGR.. I will probably be using an edel. performer intake with an adaptor plate for a holley 670TBI.
Thanks all.
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Old Jun 18, 2002 | 01:08 PM
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89Irocz23's Avatar
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From: Panama City, FL, USA
i dunno about the cam, but i would use the hot cam, but on the intake i would use the edelbrock RPM. Its a lot better then the performer.
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Old Jun 18, 2002 | 03:22 PM
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From: Mcdonough, GA
I would love to use the HOT cam but I have emissions.
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Old Jun 18, 2002 | 03:51 PM
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Brian Felts's Avatar
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From: Chillicothe Ohio
Car: 89 RS 355/ 89 IROC Convert
Engine: Hot Cam 355/TPI 305
Transmission: All 700r4's
The LT-4 cam is high lift and low duration to be computer friendly. The LT4 is a roller and the standard 330hp crate is a flat tappet cam. I don't think you would gain any except for the roller and the loss in duration may take that away. However it is emmission friendly.



Brian
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Old Jun 18, 2002 | 05:58 PM
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Thanks Brian. I wasn't expecting to gain anything, I just didn't want to lose too much power. I want to make at least 300hp, and as much torque as possible, and keep it very streetable since it is my daily driver.
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Old Jun 18, 2002 | 07:38 PM
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From: Chillicothe Ohio
Car: 89 RS 355/ 89 IROC Convert
Engine: Hot Cam 355/TPI 305
Transmission: All 700r4's
I don't think you will lose anything, I think its a swap between the two but either way you will be getting 330hp. Don't forget the LT 4 uses the 1.6 rockers.


Brian
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Old Jun 18, 2002 | 07:55 PM
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From: Mcdonough, GA
yeah, I'm gonna have to take the engine apart as soon as I buy it so I can get the heads machined and install the cam. Oh well, I hope it will be a good combo, it seems like it will be on paper.

Thanks again
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